Home tourney decision.

Ok here it is. 6 people started with 5k in chips and we were down to 3 people with the blinds at 500-1000 and i was in the BB. There is 30k in chips at the table and i have 5200 left after i posted the BB. I am dealt 4c6c and both people call the blind. the flop is 4s5h7c and i go allin thinking that someone might fold a better hand and if they call i have open ended straight draw and back door flush possibility. there is 3k in the pot and i go all-in for 5200. i feel that this was the right move because i had told myself i wasnt gettin away from the hand so i figured the best chance for me was to be the aggressor.